Well, I figured out (accidentally, by looking up my time zone on Wikipedia and finding a link) that SliTaz is running a program called zoneinfo, and that's how you go about dealing with time zones. I'm going about figuring out how to add one now, unless some more knowledgable forista wants to help me before then... ;) I think I need to compile something and that scares me.

Also, clicking the "Change" button in Control Box isn't to make list or something else pop up, it's to make the changes you type into the text box "stick."

im currently living in western australia and my time zone is +8:00 but i couldent seem to get it working either, when using UTF+8 or UTF+8:00 it added 8 mins onto the UTF time. im going to go back and have another crack i will let you know the results :D

Those won't work for daylight savings time changes. Best way is to install the glibc-locale package, then set the appropriate timezone in /etc/TZ (eg: Pacific/Auckland if you're in New Zealand). You can find all the time zones in the /usr/share/zoneinfo directory (after installing the above package).